Wilo COR 2MHI Series - Page 7

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Table 2 SCe-DM Drive Fault Codes
Code Response
Time
Restart Faults Remedies
E001 60s Immediately Pump is in overload condition,
defective
Density and/or viscosity of the conveyed
liquid is too high
Pump is obstructed by particles
Dismantle the pump and replace or clean
the defective components
E004
(EO32)
5s 300s Converter supply experiences
undervoltage
Check the converter terminals:
• Fault if network < 330V
E006 5s 300s A supply phase is missing Check the supply
E007
Immediately
Immediately The converter runs like a gener-
ator. Warning signal, pump is not
stopped
Pump veers, check tightness of the
non-return valve
E010 5s Immediately Pump is locked Dismantle the pump, clean it and replace
defective parts. It may be a mechanical
failure of the motor (bearings)
E011 60s Immediately Pump is no longer primed or is
running dry
Prime the pump by lling it. Check the
tightness of the foot valve
E020 5s Immediately Motor overheats Clean the cooling ribs of the motor
Ambient temperature exceeds
more than +50 °C
The motor is not designed for operation
at an ambient temperature of +50 °C
E023 Immediately Immediately Motor has short circuit Dismantle the frequency converter of the
pump, check and replace it, if required
E025 Immediately Immediately Missing phase at the motor Check the connection between motor
and converter
E026 5s Immediately The thermal sensor of the motor
is defective or is not correctly
connected
Dismantle the frequency converter of the
pump, check and replace it, if required
E030
E031
5s Immediately Converter overheats Clean the cooling ribs at the rear and un-
der the converter as well as the fan cover
Ambient temperature exceeds
than +50 °C
The converter is not design to operate at
an ambient temperature of +50 °C
E042 5s Immediately The sensor cable (4 – 20 mA) is
interrupted
Check the correct supply and the cable
connection of the sensor
E050 300s Immediately BMS communication time-out Check the connection
E070 Immediately Immediately Internal communication error Contact after-sales technician
E071 Immediately Immediately EEPROM error Contact after-sales technician
E072 Immediately Immediately Problem inside converter Contact after-sales technician
E075 Immediately Immediately Inrush-current relay defective Contact after-sales technician
E076 Immediately Immediately Current sensor defective Contact after-sales technician
E099 Immediately Immediately Unknown pump type Contact after-sales technician